Finding the Fourth Proportional to 213,424.09, 294,542.04 and 121,547.28
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Solution
The fourth proportional to 213,424.09, 294,542.04 and 121,547.28 is: 167,744.81
Step by Step Solution
- Step 1: Write the proportion equation
213,424.09 : 294,542.04 = 121,547.28 : x - Step 2: Convert to fraction form
213,424.09/294,542.04 = 121,547.28/x - Step 3: Cross multiply
213,424.09x = 294,542.04 × 121,547.28 - Step 4: Simplify right side
213,424.09x = 35,800,783,711.19 - Step 5: Solve for x
x = 35,800,783,711.19/213,424.09 - Step 6: Final answer
x = 167,744.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.